Jetpack problem

Hello,

My jetpack couldn’t connect with jetpack…it says

Jetpack could not contact WordPress.com: register_http_request_failed. This usually means something is incorrectly configured on your web host. Operation timed out after 30280 milliseconds with 0 out of -1 bytes received

Please i have gone through the 4 ways the problem could be solved in your Debugging center which are these below but yet to be solved.Please how can i solve this?For more than 2 months now am yet to solve it…

1.A known issue. Some themes and plugins have known conflicts with Jetpack – check the list. (You can also browse the Jetpack support pages or Jetpack support forum to see if others have experienced and solved the problem.)
2.An incompatible plugin. Find out by disabling all plugins except Jetpack. If the problem persists, it’s not a plugin issue. If the problem is solved, turn your plugins on one by one until the problem pops up again – there’s the culprit! Let us know, and we’ll try to help.
3.A theme conflict. If your problem isn’t known or caused by a plugin, try activating Twenty Twelve (the default WordPress theme). If this solves the problem, something in your theme is probably broken – let the theme’s author know.
4.A problem with your XMLRPC file. Load your XMLRPC file. It should say “XML-RPC server accepts POST requests only.” on a line by itself.
– If it’s not by itself, a theme or plugin is displaying extra characters. Try steps 2 and 3.
– If you get a 404 message, contact your web host. Their security may block XMLRPC.

https://wordpress.org/plugins/jetpack/